Multiphysics behavior of a magneto-rheological damper and experimental validation

Sternberg, A.; Zemp, René; Llera, Juan Carlos de la

doi:10.1016/j.engstruct.2014.03.016

Cited by 38 publications

(30 citation statements)

References 13 publications

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“…Previous numerical integration strategy proposed for the coupled problem was first to solve the set of field equations of the magnetic field, and afterwards apply these results into the fluid problem [22,23]. It is based on the assumption that the magnetic is invariant in time, which is true when the applied current is constant.…”

Section: Eddy Currentmentioning

confidence: 99%

“…Although all those work have been useful in modelling ferro-magnetic hysteresis, it is not straight forward to understand the certain aspects of their behaviors. Some phenomena cannot be well explained by the above hysteresis models, such as temperature rise due to energy dissipation, fluid flow and pressure drop within the damper, To address these issues, MR absorbers can be further analyzed using a multi-physics FEA model which is in its capacity to model complex interacting fields such as electromagnetism, heat transfer and fluid dynamics [19]. This state-of-the-art in FEM modelling enables us to understand the internal hysteresis behavior of MR damper prior to experimental work.…”

Section: Introductionmentioning

confidence: 99%

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Transient multi-physics analysis of a magnetorheological shock absorber with the inverse Jiles–Atherton hysteresis model

Zheng

et al. 2015

Smart Mater. Struct.

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This paper presents multi-physics modeling of a MR absorber considering the magnetic hysteresis to capture the nonlinear relationship between the applied current and the generated force under impact loading. The magnetic field, temperature field and fluid dynamics are represented by the Maxwell equations, Conjugate heat transfer equations and Navier-Stokes equations. These fields are coupled through the apparent viscosity and the magnetic force, both of which in turn depend on the magnetic flux density and the temperature. Based on a parametric study, an inverse JilesAtherton hysteresis model is used and implemented to the magnetic field simulation. The temperature rise of MR fluid in the annular gap caused by core loss (i.e. eddy current loss and hysteresis loss) and fluid motion are computed to investigate the performance of current-force behavior. A group of impulsive tests were performed for the manufactured MR absorber with step exciting currents. The numerical and experimental results showed good agreement, which validates the effectiveness of the proposed multi-physics FEA model.

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Section: Eddy Currentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transient multi-physics analysis of a magnetorheological shock absorber with the inverse Jiles–Atherton hysteresis model

Zheng

et al. 2015

Smart Mater. Struct.

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“…Results obtained from ANSYS APDL module shows that with increasing current the magnetic flux increases. From that flux density, the yield stress at the MR fluid gap, flux density shear stress, pressure drop and damper force can be analysed using the formulas (1), (2) and (3) (Sternberg et al, 2014). Formulas (1), (2) and (3) From DFA analysis it can be estimated that the assembly time for the three parts is 12.25 seconds, the labour cost per product is 0.12 $ and the DFA index is found to be 71.8 which is near to ideal case scenario.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the magnetic field for MR damper working in shear mode

Biswal

Rao

2016

IJSTRUCTE

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Seismic control, restorative and mechanical vibrations speak about a wide range of research that is emerging rapidly. Magneto-rheological dampers have as of late turned into an object of concentrated studies because of their interesting physical features and their ability to control damping in mechanical systems. In this paper an MR damper is analysed as a 2D model to be axisymmetric and finite element analysis using ANSYS is done to simulate the distribution of the magnetic field in the damper for a given current. Then the design for assembly (DFA) software tool is used for estimating cost of assembly of the final product. Keywords

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“…Many rheological models of MR-fluid have been proposed by researchers. A very detailed model using the continuum theoretic approach [1][2][3] is unfortunately too involved to be used in modeling the damper.…”

mentioning

confidence: 99%

Modeling and characterization of a magneto-rheological fluid based damper and analysis of vibration isolation with the damper operating in passive mode

Dutta

Chakraborty

2015

Journal of Sound and Vibration

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Multiphysics behavior of a magneto-rheological damper and experimental validation

Cited by 38 publications

References 13 publications

Transient multi-physics analysis of a magnetorheological shock absorber with the inverse Jiles–Atherton hysteresis model

Transient multi-physics analysis of a magnetorheological shock absorber with the inverse Jiles–Atherton hysteresis model

Analysis of the magnetic field for MR damper working in shear mode

Modeling and characterization of a magneto-rheological fluid based damper and analysis of vibration isolation with the damper operating in passive mode

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